Merge pull request #866 from iceljc/master

revert

Author: iceljc

src/Infrastructure/BotSharp.Core/Routing/RoutingService.cs

@@ -37,6 +37,7 @@ public async Task<RoleDialogModel> InstructDirect(Agent agent, RoleDialogModel m
         storage.Append(conv.ConversationId, message);
 
         var dialogs = conv.GetDialogHistory();
+        Context.SetDialogs(dialogs);
         handler.SetDialogs(dialogs);
 
         var inst = new FunctionCallFromLlm

src/Plugins/BotSharp.Plugin.FileHandler/Functions/ReadImageFn.cs

@@ -31,8 +31,6 @@ public async Task<bool> Execute(RoleDialogModel message)
             fromAgent = await agentService.LoadAgent(message.CurrentAgentId);
         }
 
-        var wholeDialogs = routingCtx.GetDialogs();
-        var dialogs = AssembleFiles(conv.ConversationId, args?.ImageUrls, wholeDialogs);
         var agent = new Agent
         {
             Id = BuiltInAgentId.UtilityAssistant,
@@ -41,6 +39,13 @@ public async Task<bool> Execute(RoleDialogModel message)
             TemplateDict = new Dictionary<string, object>()
         };
 
+        var wholeDialogs = routingCtx.GetDialogs();
+        if (wholeDialogs.IsNullOrEmpty())
+        {
+            wholeDialogs = conv.GetDialogHistory();
+        }
+
+        var dialogs = AssembleFiles(conv.ConversationId, args?.ImageUrls, wholeDialogs);
         var response = await GetChatCompletion(agent, dialogs);
         message.Content = response;
         return true;
@@ -76,7 +81,7 @@ private List<RoleDialogModel> AssembleFiles(string conversationId, IEnumerable<s
 
         if (!imageUrls.IsNullOrEmpty())
         {
-            var lastDialog = dialogs.Last();
+            var lastDialog = dialogs.LastOrDefault(x => x.Role == AgentRole.User) ?? dialogs.Last();
             var files = lastDialog.Files ?? [];
             var addnFiles = imageUrls.Select(x => x?.Trim())
                                      .Where(x => !string.IsNullOrWhiteSpace(x))